Update FEATURES
Make Grass grow and spread slowly
Sort entities on map by y position
Add MapGen:generateGridPoints to have a seemingly more even map
For now cover an exception for Centers with unsatisfying borders
Stop random colouring chunks, need to use level height somehow
Tweak MapGen:randomGridPoints to have a hexagon feel
Clean up MapGen and fix z value on Corner. Magically the sunlight on the map is now ‹*=perfect=*›
Update docs
Add Center:isSteep and steepAngle to find any places for cliffs. Not rendering cliffs yet
Change Chunk:drawDebug
Add Center:steepness
Change a few values for the start data